There are two parks that fit your description. Both are free. May I recommend Wandlebury country park located wandlebury ring, gog magog hills, babraham? Postalcode is cb223ae.
Perfect, you've answered all my questions. Thank you!
attraction-area attraction-type train-departure train-destination
attraction-area attraction-type train-departure train-destination
attraction-area attraction-name attraction-type train-departure train-destination
attraction-area attraction-type train-departure train-destination